The Secondary Market Shuffle: Anthropic, OpenAI, and SpaceX Dominate Investor Attention
In the high-stakes world of private company shares, the secondary market is experiencing a seismic shift, driven by three titans of innovation: Anthropic, OpenAI, and SpaceX. For Glen Anderson, president of investment bank Rainmaker Securities, the current landscape is a far cry from the early days of 2010, when only a handful of institutional investors dabbled in late-stage private markets. Today, thousands vie for a piece of the action, and the competition is fiercer than ever. As Anderson observes, the narrative unfolding in the secondary market is not just about valuations or liquidity—it’s about timing, momentum, and the intricate dance of investor psychology.
Anthropic: The Unstoppable Force
At the heart of this story is Anthropic, the AI company that has captured investor imagination like few others. According to Anderson, demand for Anthropic shares is “insatiable,” with buyers scrambling to secure stakes in the firm. Earlier this week, Bloomberg reported that Next Round Capital, a boutique investment firm, had identified $2 billion in cash poised to flow into Anthropic. Meanwhile, OpenAI, Anthropic’s primary rival, struggles to offload $600 million worth of shares.
What’s driving this frenzy? Anderson points to Anthropic’s recent public standoff with the U.S. Department of Defense, which initially appeared to be a liability but has since become a rallying point for its supporters. “The app got more popular, people rallied around the company as kind of a hero taking on big government,” he said. “It amplified the story and made Anthropic even more differentiated from OpenAI.”
This differentiation is increasingly critical in a market where institutional investors are no longer content to bet on everyone. While many still seek exposure to both Anthropic and OpenAI, the momentum has clearly shifted. “The jury’s still out on which AI model will ultimately win,” Anderson noted, “but in the secondary market, Anthropic is the hotter ticket.”
OpenAI: A Cooling Market?
Notably, OpenAI’s secondary market activity has tempered significantly. Shares are trading as if the company were valued at $765 billion—a notable discount to its latest primary-round valuation of $852 billion. Anderson confirmed the Bloomberg report, cautioning that his figures are approximate but “in the right range.”
OpenAI has attempted to assert control over secondary trading, warning investors to be cautious of unauthorized brokers. The company has established official channels through banks like Morgan Stanley and Goldman Sachs, which are now offering OpenAI shares to high-net-worth clients without charging carry fees.
However, this hasn’t reignited the same level of enthusiasm. “It’s not nearly as vibrant a market as Anthropic right now,” Anderson acknowledged.
SpaceX: The Resilient Leader
Amid this tug-of-war between AI giants, SpaceX stands apart as a beacon of consistency in the private markets. Unlike many companies that saw their valuations plummet during the 2022–2024 correction, SpaceX has experienced a steady upward trajectory. Anderson credits the rocket and satellite company’s disciplined pricing strategy, which has avoided the temptation to maximize valuation at every turn.
“A lot of companies will fall for the temptation to maximize the price of their stock in every round,” Anderson said. “The problem is that leaves no room for error. SpaceX didn’t get greedy.”
The payoff for early investors has been extraordinary. In 2015, Google and Fidelity invested $1 billion in SpaceX at a $12 billion valuation. Today, the company is valued at over $1 trillion ahead of its highly anticipated IPO, meaning those early backers are sitting on gains exceeding 100x.
The IPO Race
SpaceX’s impending IPO, reportedly slated for June, promises to be one of the largest in history. Elon Musk is said to be aiming to raise between $50 billion and $75 billion, a debut second only to Saudi Aramco’s $1.7 trillion listing in 2019.
The IPO filing has already reshaped the secondary market. “Today, I saw a flood of SpaceX investors coming to me saying, ‘Can you give me SpaceX?’” Anderson said. “It’s been a very active buy side.” However, supply is dwindling as shareholders hold out for the liquidity event on the horizon.
This dynamic could pose challenges for Anthropic and OpenAI, both of which are reportedly exploring public offerings of their own. While SpaceX’s IPO will test market appetite, Anderson warns that it may also absorb a significant share of available liquidity.
“SpaceX is going to soak up a lot of liquidity,” he said. “There’s only so much money allocated to IPOs. The first mover gets to the trough first; those who follow face more scrutiny and potentially less capital.”
A Balancing Act
The secondary market’s current dynamics underscore a broader truth: timing is everything. For companies like Anthropic, OpenAI, and SpaceX, the stakes are immense, and the decisions they make in the coming months could shape their trajectories for years to come.
Yet, as Anderson reminds us, the story is more nuanced than the headlines suggest. While Anthropic rides a wave of investor enthusiasm and SpaceX prepares for a historic IPO, OpenAI remains a formidable player, even if its secondary market activity has cooled.
In the end, the market’s appetite for innovation and disruption will determine the victors. But for now, one thing is clear: the secondary market has never been more captivating—or more consequential.
